# Quill vs Timebound EPUB Reader

Quill and Timebound EPUB Reader are too close to call on the numbers: across 6 compared parameters — price, update cadence, ads and in-app purchases among them — neither pulls far enough ahead to decide it. What separates them is feature set and interface, not measurable difference.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

Quill ships an update every 9 days, Timebound EPUB Reader every 5 days. The most recent releases landed on October 23, 2026 and October 31, 2026 respectively.

## The numbers

| Metric | Quill | Timebound EPUB Reader |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/quill-ai-book-reader/id6762075206/reviews)** | — |
| Number of ratings | **1** | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 9 days | **Every 5 days** |
| Monetization | Free | — |
| Size | 20 MB | 25 MB |
| Requires iOS | **17.0** | 18.0 |
| Devices | iPhone | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [思涵 岳](https://appshunter.io/developer/1885417868) | [Cow Cow Technologies LLC](https://appshunter.io/developer/924502488) |

## What reviewers say

### Quill

[App page](https://appshunter.io/ios/app/quill-ai-book-reader/id6762075206)

This application enhances your reading experience by providing AI-powered definitions, translations, and contextual explanations for any word or passage within your imported EPUB and PDF books. It offers instant insights to deepen comprehension.

**Highlights:** AI-powered explanations, Instant definitions, Contextual understanding, Import EPUB and PDF, Word and passage lookup

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases:** none


### Timebound EPUB Reader

[App page](https://appshunter.io/ios/app/timebound-epub-reader/id6778347293)

**In-app purchases:** none


## Frequently asked questions

### Is Quill free?

Quill is free to download, with no in-app purchases.

### Is Timebound EPUB Reader free?

Timebound EPUB Reader is free to download, with no in-app purchases.

### Do Quill or Timebound EPUB Reader have ads?

Neither Quill nor Timebound EPUB Reader shows ads.

### Which is updated more often, Quill or Timebound EPUB Reader?

Quill ships an update every 9 days, and Timebound EPUB Reader every 5 days. Most recently, Quill was updated on October 23, 2026 and Timebound EPUB Reader on October 31, 2026.

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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*